Lonely people in the crowded milk

If alien civilization does exist, why haven’t humans encountered them so far? Scientists have come up with numerous explanations for the Fermi paradox. Caleb Scharf, director of the Center for Astrobiology in Colombia, argues that civilizations are lonely in large galaxies like the Milky Way. He gave the example of the famous Pitcairn Islands of the South Pacific Islands.

On January 15, 1790, nine defectors, 18 Tahiti and one boy from hmS Bounty of the Royal Navy arrived on the isolated island. They were not the earliest inhabitants of the island. Polynesian tracks on the island date back to the 15th century, but were uninhabited when the island was rediscovered.

The mutineers who lived on the island in 1790 soon were left with only one person because of infighting and disease. The South Pacific is dotted with similar habitable but isolated islands. They represent potential settlements and inspire people to look for them.

The Milky Way galaxy has as many as 300 billion stars and may have hundreds of millions of planets in the habitable zone. But like the islands in the Pacific Ocean, the civilizations of the planets are isolated and isolated. For the Earth, it is entirely natural to visit without extraterrestrial civilizations.

The spread of civilization in the universe may be a wave, and the Earth may be in an isolated period, waiting for a trans-Galactic civilization to visit. But like the settlers of the Pitcairn Islands, when that happens, whether the Earth’s civilization still exists.

Lonely people in the crowded milk

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